INSTALL SECOND TURBINE DISC ASSEMBLY (AVIM) (Continued)
When checking runout, apply forward pressure to
compensate for bearing internal clearance
While rotating second turbine disc assembly, a
slight rubbing sound may be heard. This is normal
due to wearing in of second turbine nozzle labryinth
e. Zero indicator (25) and rotate second turbine disc
Maximum allowable runout shall be 0.004 inch.
g. Adjust arm (20) at base (21) and indicator clamp
(22) to position pointer (23) on hub (26).
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